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Emerald|Lab Grown|IGI

1.51ct I SI1 Emerald Lab Grown Diamond

ID • I/SI1 • IGI LG500149694

Shape and cutting style on the report: Emerald cut

Certificate IGI LG500149694

Diamond specifications and retailer prices

From £627 GBP
$840 USD
As of October 30, 2026
Save £3,006 GBP (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,633 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 1.51ct lab-grown emerald diamond

This 1.51ct lab-grown emerald sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG500149694 or 500149694. Listed at 11 retailers as of October 25, 2026, with prices from £627 to £3,633, a £3,006 spread on the same certified stone. MOH London lists it at £3,633. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle27.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500149694
Dimensions7.74 × 5.33 × 3.66 mm
L/W Ratio1.45
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.74 mm5.33 mm1.51 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500149694
Side View
Table 63.5%Crown 27.9°Girdle: Slightly ThickPavilion 41.1°Culet: LNGDepth 68.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £3,633 GBP|Low: £627 GBP|High: £3,672 GBP|Avg: £1,703 GBP|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 2£627 GBP
Retailer 6£973 GBP
Retailer 11£1,059 GBP
Retailer 12£1,090 GBP
Retailer 7£1,129 GBP
Retailer 10£1,129 GBP
Retailer 3£1,258 GBP
Retailer 4£1,555 GBP
Retailer 8£1,786 GBP
Retailer 13£2,105 GBP
Retailer 9£2,117 GBP
Retailer 5£3,233 GBP
MOH London£3,633 GBP

15 data points across 13 retailers

11 retailers£627 GBP to £3,633 GBP

A
Cheapest Retailer
-
£627 GBP
$840 USD
B
Retailer 2
-
£973 GBP
$1,304 USD
View
B
Retailer 3
-
£1,059 GBP
$1,419 USD
View
B
Retailer 4
-
£1,090 GBP
$1,460 USD
View
Final sale: no returns
B+
Retailer 5
-
£1,129 GBP
$1,513 USD
View
Retailer 6
-
£1,129 GBP
$1,513 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
£1,258 GBP
$1,685 USD
View
B
Retailer 8
-
£1,786 GBP
$2,393 USD
View
B
Retailer 9
-
£2,105 GBP
$2,820 USD
View
B
Retailer 10
-
£2,117 GBP
$2,836 USD
View
Most Expensive
B
MOH London
LG500149694 · Oct 25
£3,633 GBP
View
10 more retailers have this diamond
Prices start from £627 GBPSave up to £3,006 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.51ct Emerald
£627 GBP